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-rw-r--r--lib/libdisk/disklabel.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/libdisk/disklabel.c b/lib/libdisk/disklabel.c
new file mode 100644
index 0000000..96469ea
--- /dev/null
+++ b/lib/libdisk/disklabel.c
@@ -0,0 +1,32 @@
+/*
+ * ----------------------------------------------------------------------------
+ * "THE BEER-WARE LICENSE" (Revision 42):
+ * <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
+ * can do whatever you want with this stuff. If we meet some day, and you think
+ * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
+ * ----------------------------------------------------------------------------
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/disklabel.h>
+#include "libdisk.h"
+
+struct disklabel *
+read_disklabel(int fd, daddr_t block, u_long sector_size)
+{
+ struct disklabel *dp;
+
+ dp = (struct disklabel *) read_block(fd, block, sector_size);
+ if (dp->d_magic != DISKMAGIC)
+ return 0;
+ if (dp->d_magic2 != DISKMAGIC)
+ return 0;
+ if (dkcksum(dp) != 0)
+ return 0;
+ return dp;
+}
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